This
Recommendation provides high level general principles and guidelines that
should be applied by Network Operators for the routing of international data
traffic across interconnected public data networks. The aim of this
Recommendation is to provide network operators with the necessary information
to ensure that data traffic can be effectively and economically routed across
interconnected public data networks making best use of the available network
resources. Although this Recommendation is focused towards packet switched
data networks (such as X.25 and Frame Relay), the principles are applicable
to both circuit-switched and packet-switched public data networks.